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MHT CET 2026 (15 Apr, Shift 2) · Electric Charge & Coulomb's Law

Electric Charge & Coulomb's Law question from MHT CET 2026 (15 Apr, Shift 2)

Q9MHT CET 2026 · 15 APR · SHIFT 2Easy

Electric Charge & Coulomb's Law

A point charge 'Q' is placed at the centre of the line joining two equal charges '+q' and '+q'. The value of 'Q' when the system is in equilibrium is

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Answer: (d)

For an end charge $+q$ (separation $2r$ ): $\dfrac{kq^2}{4r^2} + \dfrac{kqQ}{r^2} = 0$ .
$Q = -\dfrac{q}{4}$
So the answer is (d) $\dfrac{-q}{4}$ .

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